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| author | Alex Tomas <alex@clusterfs.com> | 2008-01-28 23:58:27 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-01-28 23:58:27 -0500 |
| commit | 1988b51e476bd097d910c9245b53f2e38aedaf0d (patch) | |
| tree | a36b860ac1a49b359d6dc5fd7af9916cf034cac8 /include/linux/ext4_fs_extents.h | |
| parent | aa02ad67d9b308290fde390682cd039b29f7ab85 (diff) | |
| download | lwn-1988b51e476bd097d910c9245b53f2e38aedaf0d.tar.gz lwn-1988b51e476bd097d910c9245b53f2e38aedaf0d.zip | |
ext4: Add new functions for searching extent tree
Add the functions ext4_ext_search_left() and ext4_ext_search_right(),
which are used by mballoc during ext4_ext_get_blocks to decided whether
to merge extent information.
Signed-off-by: Alex Tomas <alex@clusterfs.com>
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: Johann Lombardi <johann@clusterfs.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'include/linux/ext4_fs_extents.h')
| -rw-r--r-- | include/linux/ext4_fs_extents.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/ext4_fs_extents.h b/include/linux/ext4_fs_extents.h index 1cfb4854c964..697da4bce6c5 100644 --- a/include/linux/ext4_fs_extents.h +++ b/include/linux/ext4_fs_extents.h @@ -223,5 +223,9 @@ extern unsigned int ext4_ext_check_overlap(struct inode *, struct ext4_extent *, extern int ext4_ext_insert_extent(handle_t *, struct inode *, struct ext4_ext_path *, struct ext4_extent *); extern struct ext4_ext_path *ext4_ext_find_extent(struct inode *, ext4_lblk_t, struct ext4_ext_path *); +extern int ext4_ext_search_left(struct inode *, struct ext4_ext_path *, + ext4_lblk_t *, ext4_fsblk_t *); +extern int ext4_ext_search_right(struct inode *, struct ext4_ext_path *, + ext4_lblk_t *, ext4_fsblk_t *); #endif /* _LINUX_EXT4_EXTENTS */ |